/**
 * Copyright (c) 2011 ~ 2014 Deepin, Inc.
 *               2013 ~ 2014 jouyouyun
 *
 * Author:      jouyouyun <jouyouwen717@gmail.com>
 * Maintainer:  jouyouyun <jouyouwen717@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 **/

package main

import (
	"fmt"
	"github.com/BurntSushi/xgbutil"
	"github.com/BurntSushi/xgbutil/keybind"
	"github.com/BurntSushi/xgbutil/xevent"
)

func grabKeyboard(X *xgbutil.XUtil) {
	if X == nil {
		return
	}

	if err := keybind.GrabKeyboard(X, X.RootWin()); err != nil {
		fmt.Println("GrabKeyboard failed:", err)
		return
	}

	//mod, codes, _ := keybind.ParseString(X, "Super_L")
	//for _, c := range codes {
	//keybind.Grab(X, X.RootWin(), mod, c)
	//}

	xevent.KeyPressFun(
		func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
			fmt.Println("KEY PRESS.....")
			modStr := keybind.ModifierString(e.State)
			keyStr := keybind.LookupString(X, e.State, e.Detail)
			fmt.Printf("modStr: %v, keyStr: %v\n", modStr, keyStr)

			shortcut := modStr + "-" + keyStr
			if shortcut == "control-q" {
				fmt.Println("Exit......")
				xevent.Quit(X)
			}
		}).Connect(X, X.RootWin())

	xevent.KeyReleaseFun(
		func(X *xgbutil.XUtil, e xevent.KeyReleaseEvent) {
			fmt.Println("KEY RELEASE.....")
			modStr := keybind.ModifierString(e.State)
			keyStr := keybind.LookupString(X, e.State, e.Detail)
			fmt.Printf("modStr: %v, keyStr: %v\n", modStr, keyStr)

			shortcut := modStr + "-" + keyStr
			if shortcut == "control-q" {
				fmt.Println("Exit......")
				xevent.Quit(X)
			}
		}).Connect(X, X.RootWin())
}

func grabSuper(X *xgbutil.XUtil) {
	if X == nil {
		return
	}

	keybind.KeyPressFun(
		func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
			modStr := keybind.ModifierString(e.State)
			keyStr := keybind.LookupString(X, e.State, e.Detail)
			fmt.Printf("modStr: %v, keyStr: %v\n", modStr, keyStr)
		}).Connect(X, X.RootWin(), "Super_L", true)
}

func main() {
	X, err := xgbutil.NewConn()
	if err != nil {
		fmt.Println("New xgb connection failed:", err)
		return
	}

	keybind.Initialize(X)

	grabKeyboard(X)
	//grabSuper(X)

	xevent.Main(X)
}
